The original Worn Powerstone appeared in Media Inserts, in 1995.
The original art was by Henry G. Higginbotham.
Modern Horizons 3
The Lost Caverns of Ixalan Commander
Commander Masters
Tales of Middle-earth Commander
Starter Commander Decks
Warhammer 40,000 Commander
Warhammer 40,000 Commander
The List
Commander 2018
Commander Anthology Volume II
Commander 2017
Eternal Masters